Hello.
I installed the UE and there was this error. What is most interesting is the drivers for my graphics card is no longer available. As reschit this problem?
Use this link to download the auto-detect driver installer from AMD it will find your installed graphics card and then install the latest drivers for you:
Or if you prefer you can manually select your drivers from the list further down on this page:
http://support.amd.com/en-us/download
I did a quick look-see and the HD 4670 or HD 4xxx series is still listed so you would just need to match the version to your OS and then download it. It may be easier to just use the auto detect installer.